Which source of preexistent melodies gives Hindemith's opera Mathis der Maler a greater sense of dramatic plausibility?

______________ , which come in a variety of colors and degrees of hardness, have a waxy binder that enables them to adhere to paper better than charcoal or pastel

a. quills b. graphite pencils c. conté crayons d. inks e. metalpoints

In the ____ color system, artists mix pigments to control the light that is reflected from them

a. subtractive b. additive c. biomorphic d. organic